Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e03d584fadc82ce…

MALICIOUS

PDF

151.0 KB Created: 2021-07-17 18:25:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: a82b6747a1d90a93f704a016d1a6bdc5 SHA-1: fce0546af42096fd4d17e5508b5d1d01e593eeee SHA-256: 0e03d584fadc82ce33aa6b73d95b2b6743dba8f1a451a39a1cc6447fb61efbea
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged as malicious by ClamAV and an ML classifier, indicating a phishing or trojan delivery attempt. The presence of embedded URLs, though many are marked as benign, suggests an attempt to redirect the user to malicious content. No scripts were extracted, limiting further analysis of its specific payload delivery mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5041

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://feedproxy.google.com/~r/sq/ugae/~3/iCUEKX862tE/square?utm_term=when+do+you+flip+the+sign+for+inequalities
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60ec83d8b8cbe518df57cc77/1626112985018/akon_lonely_song_ringtone.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60e7d01f51cb2a526cfc2247/1625804831367/5_positions_of_the_major_pentatonic_scale.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60ee60bd7dee9f188f7abaa5/1626235069406/polymyositis_in_dogs_eyes.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e8fad28915684aa53b9c78/1625881298364/41737599439.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f2f13b04a1d970179693e7/1626534203509/davilowemipebemumaxugam.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60e7fcc16e46386ca3c1f52c/1625816257970/wozifapalojo.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e885432d8eb734bed8ac09/1625851203569/88568186915.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001eff3.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1EFF3 16792 bytes
font_01_sfnt_off00020805.bin
41d2a56db14b2ac5d397ffae000dbf1507afd005c44c72fb3336bbeab7bf38a7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x20805 17552 bytes
font_02_sfnt_off0002361d.bin
3895abf3d91998d86b13007e3d82acf28cead6167631bfe0c582cd7eb8368013		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2361D 11132 bytes

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